Fireless cooker.



No. 875.695. I PATENTED JAN. 7, 1908. H. H. UREA.

FIRELESS COOKER.

APPLICATION FILED mus, 1907.

2 SHEETS-SHEET 1.

witnesses. Inventor 261W /wfw-, g/ 4zg H. H. UREA.

PIRELESS COOKER.

APPLIOATION FILED nus. 1907.

PATENTED JAN. 7, 1908.

mums-SHEET 2.

witnesses UNITED STATES HARRY H. OREA. OF DECATUR TLLINUIS.

FIRELESS' COOKER.

Specification of Letters Patent;

Application filed Mav3.1907. Serial'No- 371.716.

Patented J an. 7', 1908.

To all whom it may concern:

Be it known that I, HARRY H. UREA, acitizen'of'the United States, and resident of Decatur,'in the county of Macon and State of Illinois, have invented certain new and use- -ful'Improvements in Fireles's Cookers, and

. this ypreferred manner of carrying out the invention is set forth in lthefo'llowing full, clear and exact description, terminatin with Claims particularly specifying the novelt y.

This invention relates to stovesand fur: naces, and more especially. to that class of devices thereunder which are employed for cooking; and the object of the same is to produce an improved fireless cooker -who'se construction will be described below.

The invention comprises but three main parts, to wit: a shell ort-ub, a nest located centrally within the same and in which nest the pot or kettle is to be .placed,.and a cover for the nest and shell. The parts are preferably constructed of galvanized iron or other sheet metals which are not susceptible to" corrosive action, and certain of them are provided with means for preventing the transmission of heat. Such means I term herein non-conducting chainbersf. and I ,show them as air. chambers, contain other non-conductin 'material in addition to the. air. The other point involved in the present invention is that when in use the nest shall 'be'surrounded radially with a plurality of non-conducting chambers and shall be surmounted by a lurality of such chambers, there preferabl' also being The object of construction is to prevent the heat carried by the contained pot orkettle from. es-

caping or radiating to the'outside of the device, and the further object is to construct a firelesscooker in such manner that it shall be sanitar because there isordinarily no packing and hence the parts are readily cleaned when they are separated.

Referring to the accompanying drawings Figure-1 is a plan view of the cooker with the cover removed, Fig. 2 is a bottom plan view of the cover, 3 is a side elevation of the entire device, showing more particularly the shell, Fig. 4 is a central vertical section through the same, Fig. '5 and 6 are plan views of amplifications of this idea wherein several independent cookers (here shown as without their covers) are contained within although .they may present illustration a tub consisting of an upright body 1 having suitable handles 2, an open upper end'preferably surrounded by a heading 3, and a closed bottom 4. By preference the body 1 ,is' cylindrical as shown, although of course it may be oval, poly onal or of othercontoulf. The handles may be of any proper type or may be omitted entirely. Within the body on thebottom are disposed a number of guides 5 directed from the body obliquely inward toward the center of the shell, and these guides are preferably fixed in place.

' The nest for containing the pot or kettle 10, preferably comprises a cylindrical bodfi .11 of smaller diameter than that of the she and resting at its lower edge on the bottom 4, having a central opening or compartment 12 which receives thepot or kettle, a surrounding wall 13' which forms this compartment and is spaced from the body 11 so as to form' between them a non-conducting chamber 14 and a flat annular cover 15 for this chamber. Below the latter and across the lower ed e of the wall 13 extends a raised bottom 16 whose edges aree'ngaged in a crimp 17 in the outer wall 11-, thereby forming a non-conducting chamber 18 below the compartment 12.

The lower edge of the body 11 is ada ted to fit within the guides 5 and by them e centered upon the bottom 4, whereby the bod or outer wall of the nest will he s acecl al around from the body.1 of the s ell. By reference the body 11 is of somewhat less eight than the shell, as best seen in Fig. 4.

The cover for this device comprises a top .plate 20 from which depends an annular skirt21 of a diameter to stand about midway between the body 1 of the shell and the of a depth to oint about opposite said crimp.

outer Wall 11 of the nest, and extend to a 17. In addition, the cover also comprises a second plate 22 fitting within said skirt and forming a non-conducting chamber 23 between 1t and the top plate'20; a'smaller or supplemental skirt 24 depending from the plate 22, and of about the same diameter as the outer wall 11 of the nest; and a series of supplemental plates 25 across and within this supplemental skirt and .forming a plurality of non-conducting chambers 26 betweenthem and below the plate 22. Thus it will be seen that by placing the cover in position as shown 1I1'F1g. 4, a lurality of non-conducting chambers 26 and 23 will be superimposed above the nest, the latter will ducting chambers surrounding its nest the c hamlne-rs are empty so as to constitute air spaces, although it is contemplated that they to the boiling point on a stove, range, or

-process really continues after the kettle is nest.

, bottom raised above that of the shell to form plurality of such chambers surrounding the be surrounded by a plurality oi no nccnducting chambers consisting first of that nun);- bered 14 in its own bodyand next by those inside and outside of the skirt oi the cover, and the nest will also have a non-conducting chamber 18 beneath it. By preference these may be wholly or partially filled with any suitable material which is a non-conductor of heat, for which purpose 1 havecalled them non-conducting chambers their function is to prevent the escape to the outside of the heat contained within the nest proper asrepresented by the compartment 12. in operation, meats, fowls, vegetables,,cereals and the like are put into the kettle, brought similar source of heat, kept at that tempera ture from one to ten minutes according to the article being cooked, and then quickly removed Within the same receptacle which is placed in the nest of this improved, fireless cooker and is allowed to remain there for several hours until the process of cooking is completed. This latter results from the fact that the temperature of the material of the kettle and its contents has been raised sufficiently'high to cook the latter, an,d by the use of a fireless cooker with non-contemperature is retained so that the'c'ooking removed from the stove.

In Figs. 5 and 6 I have shown amplifications of this idea in which several indepen dent cookers are contained Within a surround ing casing 30 which ma' ,be shaped to cause the best results. Whdlher. thereshall be packing 31 within the casing and outside and around the shells 1 is an immaterial matter, as also Whether the casing shall have an independent cover or -not., I

What is claimed as new is:

1., A fireless cooker comprising a shell, a nest therein, and a cover havinga skirt and a plurality of separated plates rigidly held therein and forming a plurality of non-conductingchambers superimposed above the A fireless cooker comprising a shell, a west therein, a plurality of non-conducting dhambers surrounding the nest between it and the'shell, a cover having a skirt, and a plurality of separated plates rigidly held therein and forming a plurality of superimposed non conducting chambers in the cover above the nest.

A fireless cooker comprising a shell, a nest centrally disposed therein and with its a non-conducting chamber between them,a

nest between it and the shell, a coverhaving rigidly held therein and forming a plurality of non-conducting chambers in the cover superimposed above the shell.

4 iireless cooker comprising a shell hav-- ing an open top and aclosed bottom, and pe riphcral guides on the latter directed toward its center; a nest consisting of a cylindrical body fitting between said guides, a raised botton forming a non-conducting chamber below it, and a non-conducting 'clianiber surrounding its central opening; and a cover consisting of a skirt adapted to stand midway between said shell and the outer wall of the nest, and a series of plates 'Within the skirt and'forming non-conducting chambers superimposed above the nest.

5. A tireless cooker comprising a shell having an open top and a closed bottom, and peripheral guides on the latter directed towards its center; a nest consisting of a cylindrical body iitting within the guides, a raised bottom secured across the body and forming a non-conductingchamber beneath, an inner wall secured upomsaid bottom and forming a non-conducting chamber surrounding the central pot-compartment, and an annular cover rigidly connecting said inner Wall and the body; and a cover for the whole including a series of non-conducting chambers adapted to rest upon said annular cover and to extend over and close the pot-compartment.

6. A fireless cooker comprisin a shell; a nest consisting of a. body central y disposed the crimp, and a non-conducting chamber supported on'said bottom; and a cover for the nest having a skirt adapted to stand be tween said-shell. and the outer wall of the nest, and a plurality of 'nonconducting chambers of which some stand above the nest and its chamber and at least one is larger and extends over the space between said skirt and the outer wall of the nest.

7. A fireless cooker comprisin a shell havi xg an open top and a closed lmttom, and peripheral guides on the latter directed towards its center; a nest consisting of a body fitting between said guides and crimped, a false bottom held in the crimp and forming a non-conduc ting chamber below it, and a non conducting cham 3r sulrounding its central opening and having a closed top; and a cover having a skirt adapted to stand between said shell and the outer wall of the nest, and a plurality of nonconducting chambers of which some stand above the nest and the closed top of its chamber and the remainder of larger diameter stand above said firstmentioned chamber and extends out to said skirt.

8. A tireless cooker comprising a shell having an open top; a nest of less height thanthe therein and crimped, a false bottom held in v with but spaced from said shell, an inner con-- skirt, and a plurality of separated plates centric wall spaced from the outer Wall to form'a non-conducting chamber surrounding the pot-compartment inclosed b said inner Wall, an annular cover closing the top of said chamber, and a bottom closing both the chamber and compartmen't;.and acover consisting of a top plate, a skirt adapted to stand between said outer Wall and shell, a

supplemental skirt, all said plates being spaced to form a plurality of non-conducting chambers.

In testimony whereof I si n my name in the presence of tWo subscri this 29th day of April, 1907.

' HARRY H. CREA.

Witnesses:

J. B. MoFFE'rT, NORA GRAHAM.

ing Witnesses, 15. 

